Beatrice in A#

Sam Rivers(1965)swing
Do Re MiC D E
A
B
BMaj7♯11
BMaj7♯11
BMaj7♯11

Chord Diagrams — Beatrice in A# (Guitar)

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Beatrice in A#

Key of A#

A# (Bb) major requires barre chords rooted at fret 1 on the A string or fret 6 on the E string. Despite the barre demands, it is a common key in funk, New Orleans R&B, and brass band music. The open D string can ring as the major third for added color. A# is a intermediate-level key on guitar because the open D string is the major 3rd of Bb, adding a bright color if allowed to ring. Expect to rely on barre chords throughout, which builds hand strength and unlocks the entire fretboard.

Voice Leading

The bass line moves through A# to B (ascending half step), B to G# (descending minor third), G# to G (descending half step), G to G# (ascending half step), G# to F (descending minor third), F to D# (descending whole step), D# to D (descending half step), D to D# (ascending half step), D# to D (descending half step), D to A (descending perfect fourth), A to G (descending whole step), G to C (ascending perfect fourth), C to A# (descending whole step), A# to B (ascending half step), B to A# (descending half step). A half-step bass movement creates a strong leading-tone pull that demands resolution. The predominantly stepwise bass motion creates smooth, connected voice leading. When the progression loops, the bass returns from A# to A# by unison.

Scales for Improvisation

A# major pentatonic works because every note is either a chord tone or a safe passing tone — there are no avoid notes. For soloing, this means you can play freely without clashing. Over dominant seventh chords, A# Mixolydian adds the flat seventh for an authentic blues-rock edge.

swing4/4 · 22 bars · Form: AB

Chords: A♯, BMaj7♯11, G♯, Gm7, G♯Maj7, Fm7, D♯m7, Dm7, D♯, D7, Am7♭5, Gm, Cm7, A♯m7, B7, A♯m.

Scales for Improvisation A# bebop, A# bebop major.

Diatonic chords: See all chords in the key of A#